<!DOCTYPE html>
<html xmlns:th="www.thymeleaf.org">
<head>
  <meta charset="utf-8">
  <title>Student form</title>
</head>
<body th:object="${student}">
<h1 th:if="*{id}">Edit student</h1>
<h1 th:unless="*{id}">Add a student</h1>
<form method="post" th:action="@{*{id}==null?'/student/add':'/student/edit'}">
  <table border="1" width="100%">
    <input type="hidden" th:field="*{id}">
    <span th:errors="*{id}">Id errors</span>
    <tr>
      <td>Student No.</td>
      <td><input type="text" th:field="*{sno}" /></td>
      <td th:errors="*{sno}">No. Error</td>
    </tr>
    <tr>
      <td>Firstname</td>
      <td><input th:field="*{firstname}"></td>
      <td th:errors="*{firstname}">Firstname Error</td>
    </tr>
    <tr>
      <td>Lastname</td>
      <td><input th:field="*{lastname}"></td>
      <td th:errors="*{lastname}">Lastname Error</td>
    </tr>
    <tr>
      <td>Gender</td>
      <td>
        <input type="radio" th:field="*{gender}" value="M">男
        <input type="radio" th:field="*{gender}" value="F">女
      </td>
      <td th:errors="*{gender}">Gender Error</td>
    </tr>
    <tr>
      <td>Birthday</td>
      <td><input type="date" th:field="*{birthday}"></td>
      <td th:errors="*{birthday}">Birthday Error</td>
    </tr>
    <tr>
      <td>Email</td>
      <td><input type="email" th:field="*{email}"></td>
      <td th:errors="*{email}">Email Error</td>
    </tr>
    <tr>
      <td></td>
      <td><input type="reset"><input type="submit"></td>
    </tr>
  </table>
</form>
</body>
</html>